|Primary=Indiana's primary system does not require voters to register with a party, but the ballot they get depends on their voting history, which party they have voted for most in the past.<ref>[http://www.in.gov/legislative/ic/2010/title3/ar10/ch1.html ''Indiana Code'', "Section 3-10-1-6," accessed January 3, 2014]</ref>

Primary: Indiana is one of 21 states with a mixed primary system. Voters are not required to register with a party, but the ballot they get depends on which party they have voted for most often in the past.[1]